Gearing mechanism



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l e RN i H wMr/ IWW /l/li a H M H YEA..." U i E M/ H ii Ev/l7,- lllllll'm ll" I l S N 5!)! C. HENDERSON GEARING MECHANISM Filed Feb. 1. 1922 QEww V Patented July 10, 1923. v

CARL HENDERSON, or oH oAGo, LLI1\ToIs, AssIeNon 'ro MIEHLE PRI TING Innss, NDJVIANUFACT RING COMPANY,- or onIcAe-o, LLInoIs,.A conronairronorILLINOIS;

GEA -Ins MECHANISM,

. Application filed February 1, 1922 Serial No 533,191.

T 0 all a item it may concemt:

Be it known that I, CARL H-nnnnnsoma citizen .of the United States,-residing at Chicago, in the county of Cook and State of Illinois, haveinvented certain new and useful Improvements in" Gearing Mecihanism, ofwhich the following is 'aspecification.

This, invention relates to printing presses, and more particularly togearing mechanism for driving various parts of the press;

and particularly the vibrator, inking and rider rolls.

As is well known, whenever a printing press is tripped, it is necessaryto trip or move the inkingrolls out of engagement with the form memberor cylinder for preventing an excessive supply of ink, being depositedthereon. 'It is also desirable to keep the inking, vibrator and riderrolls in motion when tripped away from the form cylinder. This is oldpractice, but hereto= fore invso doing the relatively small gears fordriving the vibrator, inking and rider rolls have been drawn away, fromtheir main associated driving gear an amount not quite suflicient toforce said gears outofmesh, but enough to give a relatively great amountof play between the teeth of the intermeshing gears and causingconsiderable wear of the teeth and also a great amount of noise.,

Accordingly, one object of my present invention is to overcome the wearof the gear teeth in question and to-overcome the undesirable noisementioned, and at the same timeprovide a gearing arrangement which issimple, durable and efficient and adapted to meet all of therequirements for successful commercial use. I

This and other ob ects are accomplished by means of the arrangementdisclosed on cylinder. Cooperating with the form cylinwe'ntion inconnection with a printing press having,a'formcylmderlO, secured towhioh is a gear 11 whichmeshes with and 'is driven by a gear'12' fordriving the form inder 1'O for: inking same are a plurality "oflnking'rolls 13, vibratorrolls' landrider rolls 15, all of which are'n'iounted in a frame 16 which is raised infa manner: asv

shown in the copendingapplication 'of Joseph IR; Blaine, Serial No.492,882,1iled August 17,1921, for the purpose of tripping gears 17'"which are driven by a plurality of gears 18', it being-understood thatthe: inking rolls 13 andrider rolls 15 are driven bytthe engagementtherewith. :The ear 18 are driven by a relatively large gear 19 and thedegree of mesh between the teeth of ear-- 19. and gears 18 is maintainedconstant for the purpose-ofprevent-ing wear of the teeth of said gears,and also for preventing noise incident to drawing the gears away fromeach other suchthat their pitch j'circles do not have rolling contact.

As mentioned, heretofore when the inking rolls have been tripped outofengage "the ink rolls 13 out of engagement with the form cylinderlO-if itis desired so todo.

The vibrator rolls 1% are provided with Hvibratorrolls 1 1 as the resultof frictional 5 ment with respect to the form cylinder-'10,

the gears have been drawn away fromtheir driving gear with theaccompanying disadvantages mentioned, butI havexprovided an arrangementwhereby, even though the inking rolls are tripped, the degree of meshbetween the teeth of .gears18 and 19 will be maintained constant. Tothis-lend the gear 19 is movedbodily with the frame 16,1the gear 19being in the form of aring having an annular flange 20 which looselyrides on a'hub member 21 securedto the frame 16in any suitable manner,such'as'by bolts 22, said hub having a collar 23 on one side'and a ring24 secured to the other side thereof for preventing the gear 19 frombeing displaced laterally. The gear 19 maybe driven by any suitable gear25. V It will be understood thatthroughythe position of drive gear 2'5being so near right angles to the direction of lift, the gear 19 will bepulled out of mesh a negligible amount and little wear and little noisewill;

be occasioned. On the other hand, if gears ration, wear and noise wouldbe increased beyond a practical limit. The flange 20 of gear 19 isprovided with generous oil grooves 26 to which oil is fed through a pipe27.

It is my intention to cover all modifications of the invention fallingwithin the spirit and scope of the following claims.

I claim:

1. In a printing press, the combination of a form. member, inking rollsassociated therewith, a movable frame in which said inking rolls aremounted, gears through which said rolls are actuated, and a driving gearfor said other gears carried by said frame and movable bodily with saidgears, when the frame is moved for tripping the inking rolls, tomaintain a constant degree of mesh between said gears.

2. In a printing press, the combination of a form member, inking rollsassociated therwith, a frame in which said inking rolls are mounted,gears through which said rolls are actuated, and a driving gear for saidother gears carried by said frame and bodily movable with the inkingrolls, when the latter are tripped away from said form member, tomaintain a constant degree'o't mesh.

3. In a printing press, the combination of a formcylinder, means foractuating, same, inking rolls associated with saidform cylinder, gearsthrough which said rolls are actuated, and a driving gear for said othergears iovable bodily therewith, when the inking rolls are tripped awayfrom said form memher, to maintain a constant degree of mesh.

4-. In a printing press, the combination of a formcylinder, means fordriving same, inking rolls associated with said cylinder, a movableframe in which said rolls are mounted, gears for driving said rolls, anda driving gear for said other gears carried by said frame and movablebodily with said other gears, when the inking rolls are tripped awayfrom said form cylinder, to maintain a constant degree of mesh.

5. In a printing press, the combination of a form member, inking rollsassociated therewith, gears through whichv said rolls are actuated, anda driving gear for said other gears movable bodily therewith, when theinking rolls are tripped away from said form member, to maintain aconstant degree of mesh.

Signed at Chicago, Illinois, this 28th day of December, 1921.

CARL HENDERSON.

